000 00401nam a2200121Ia 4500
008 160607s9999 xx 000 0 und d
100 _aUnited Nations environment programme
_994101
245 _aDirectory of institutions and individuals active in environmentally - sound and appropriate technologies
260 _aNew York
260 _bPergamon press
260 _c1979
300 _axviii,152p.; 22cm.
999 _c42402
_d42402